diff --git a/phpstan.neon b/phpstan.neon
index 26f67eed28..148482f1f7 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -26,6 +26,7 @@ parameters:
         - '#should return (\S*)(static|\$this)\(Carbon\\Carbon\)(\|null)? but returns Carbon\\Carbon(Interface)?(\|null)?\.$#'
         - '#should return (\S*)(static|\$this)\(Carbon\\CarbonImmutable\)(\|null)? but returns Carbon\\Carbon(Immutable|Interface)(\|null)?\.$#'
         - '#should return (\S*)\$this\(Carbon\\CarbonInterval\)(\|null)? but returns static\(Carbon\\CarbonInterval\)(\|null)?\.$#'
+        - '#should return (\S*)static\(Carbon\\CarbonInterval\)(\|null)? but returns Carbon\\CarbonInterval(\|null)?\.$#'
         - '#^PHPDoc tag @return with type Carbon\\CarbonTimeZone is not subtype of native type static\(Carbon\\CarbonTimeZone\)\.$#'
         - '#^PHPDoc tag @mixin contains invalid type Carbon\\Traits\\DeprecatedProperties\.$#'
         - '#^Access to an undefined property DatePeriod::\$include_end_date\.$#'
diff --git a/src/Carbon/CarbonPeriod.php b/src/Carbon/CarbonPeriod.php
index 8d8ed62153..c59f9bb6eb 100644
--- a/src/Carbon/CarbonPeriod.php
+++ b/src/Carbon/CarbonPeriod.php
@@ -42,9 +42,11 @@
 use RuntimeException;
 use Throwable;
 
+// @codeCoverageIgnoreStart
 require PHP_VERSION < 8.2
     ? __DIR__.'/../../lazy/Carbon/ProtectedDatePeriod.php'
     : __DIR__.'/../../lazy/Carbon/UnprotectedDatePeriod.php';
+// @codeCoverageIgnoreEnd
 
 /**
  * Substitution of DatePeriod with some modifications and many more features.
diff --git a/tests/CarbonInterval/FromStringTest.php b/tests/CarbonInterval/FromStringTest.php
index 2f909d1599..53aaee5033 100644
--- a/tests/CarbonInterval/FromStringTest.php
+++ b/tests/CarbonInterval/FromStringTest.php
@@ -109,7 +109,7 @@ public static function dataForValidStrings(): Generator
         // big numbers
         yield ['1999999999999.5 hours', new CarbonInterval(0, 0, 0, 0, 1999999999999, 30, 0)];
         yield [(0x7fffffffffffffff).' days', new CarbonInterval(0, 0, 0, 0x7fffffffffffffff, 0, 0, 0)];
-        yield ['1999999999999.5 hours -85 minutes', new CarbonInterval(0, 0, 0, 0, 1999999999999, 115, 0)];
+        yield ['1999999999999.5 hours -85 minutes', new CarbonInterval(0, 0, 0, 0, 1999999999999, -55, 0)];
         yield ['2.333 seconds', new CarbonInterval(0, 0, 0, 0, 0, 0, 2, 333000)];
     }
 
diff --git a/tests/CarbonPeriod/MacroTest.php b/tests/CarbonPeriod/MacroTest.php
index 740cceca6b..7ec72cde38 100644
--- a/tests/CarbonPeriod/MacroTest.php
+++ b/tests/CarbonPeriod/MacroTest.php
@@ -27,10 +27,8 @@ class MacroTest extends AbstractTestCase
 {
     protected function tearDown(): void
     {
-        $reflection = new ReflectionClass(static::$periodClass);
-
-        $reflection->getProperty('macros')
-            ->setValue([]);
+        (new ReflectionClass(static::$periodClass))
+            ->setStaticPropertyValue('macros', []);
 
         parent::tearDown();
     }